[Info-vax] VAX/VMS V1, V1.5 or anything older than V5

[glen herrmannsfeldt]

Bob Koehler <koehler at eisner.nospam.encompasserve.org> wrote:

(snip)
>   VMS 1 ran on the 11/780, and SIMH does emulate the 11/780.  What
>   is not clear to me is whether SIMH's 11/780 includes compatability
>   mode.

If it doesn't, then it seems to me that it isn't an emulator
of the 11/780.

>   Much of VMS 1 was RSX utilities running in compatability mode.

>   If SIMH's 11/780 does not include compatability mode, it should be
>   possible, but possibly not trivial, to add it from SIMH' PDP-11
>   simulation.

-- glen